Method for mixing



July 2; 11%

F. L. CRADDOCK 1,719.00

METHOD FOR MIXING Filed Nov. 19. 1926 '0, IIIIIIIIIIIIIIIIIIIIIIIIIIIIIII/ Patented July 2, 1929.

PATENT OFFICE.

rnnnnnrcx'n. cRAmJoox, or new YORK, H12.

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hrig'lnal application filed July 31, 1923. Serial No. 654,825. Divided and. this application filed Hoveinbe 19, 1926. Serial No. 149,773., I

This is a divisional application divided out from my application SerialNo. 654,825 for mixing devices filed July 31, 1923, and allowed May 26, i926.

The object of this invent1on is to provide an improved method for mixing food stuffs and other liquids, fluids or solids and mixtures of ill lid

various materials in tanks by. creating a stream in the body of the mix having a particular direction of flow therein as will be more fully described hereafter.

My improved method of mixing bodies of material in tanks consists essentially of creating a substantially solid cylindrical stream of the mix in the body thereof along a slanting axis approximating that indicated in the v drawing. l have found such a. stream to eflect several useful results the combination of which provides an advanced method for strike a surface such, for instance, as the side a or bottom of a tank glancingly and in such a manner as to break up and change direction abruptly, thus mixing the material then in the stream, and also inducing aflow around an axis which is intermediate thehorizontal and the vertical in the material outside the I of the method. However, this improved method may also be practiced in other apparatus, such for instance, as that described in my patent for angular fluid mixers, Number 1,548,935, issued ugust 11, 1925. a

In my method of mixing as fieoted by the stream directed as in the drawin an extremely complex movement of the mix occurs. The stream of mix has a tendency to' be pulverizedas it strikes the" bottom and side of the tank a glancing blow, and then to sdcontinue as to roll and move the body of the mix. Thus all parts of the mix are successively acted upon.

Referring tothe accompanying drawings: Fig. 1 is a plan view of a tank designed to contain amix, and r Fig; 2 is a cross-section of Fig. 1 taken on the line 22' looking in the direction of the arrows. The tank 1 is rovided with any suitable mstrumentality, or instance, a propeller 25, to create a stream in the direction of the arrow A, in the body of any mix which the tank 1 may, contain.

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The stream thus created co-acting with the ternal to the centre of the body, whereby all parts of the mix are caused successively to roll, be pulverized, and thoroughly mixed.

2. The method of mixing bodies of material which consists in creating a substantially solid compacted cylindrical stream therein along a downwardly slanting axis in a vertical plane external to the centre of the body, whereby all parts of the mix are caused to successively roll, be pulverized, and thoroughly mixed.

3. The method of mixing bodies of materials which consists in creating a substantially solid, cylindrical, compacted stream therein along an axis in a vertical plane external to the centre of the .body, abruptlyv deflecting the stream to effect a mixture of the then contents of the stream and so directing the stream. after deflection as to force all parts of the body to successively become a part, of the stream.

4. The method of mixing bodies of materials-which consistsin creating a substantially solid, cylindrical, compacted stream therein along an axis in a vertical plane external to the centre of gravity of the body and also in a plane at right angles to said vertical.

plane and external to the centre of gravity FREDERICK EL.- GRADDOGK. 

